54780740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{391291}}^1$

素因数の和:391307

約数の個数: 24

約数和(自身を含む): 131474112

約数和(自身を除く): 76693372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 391291, 782582, 1565164, 1956455, 2739037, 3912910, 5478074, 7825820, 10956148, 13695185, 27390370, 54780740]

約数ペア:

[(1, 54780740), (2, 27390370), (4, 13695185), (5, 10956148), (7, 7825820), (10, 5478074), (14, 3912910), (20, 2739037), (28, 1956455), (35, 1565164), (70, 782582), (140, 391291)]